[SainathPoojary]

Since the HTML API rewrite of KSES, wp_kses() stops at the first <noscript> and drops everything after it. For users without unfiltered_html (Authors, Contributors, commenters), the rest of the post or comment is lost on save.

This PR removes the <noscript> element and its contents, and keeps the content after it.

How:

• Instead of stopping at <noscript>, count open <noscript> tags and skip every token until the matching closing tag.
• Nothing inside is output, so the original safety goal still holds.
• Only HTML <noscript> is counted. Inside SVG or MathML, the allow-list already handles it.

Before:

Screen.Recording.2026-11-12.at.6.36.05.PM.mov

After:

Screen.Recording.2026-11-12.at.6.35.15.PM.mov

Trac ticket: https://core.trac.wordpress.org/ticket/66674

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Opus 5.5
Used for: Drafting the initial draft and tests. I reviewed and tested the changes locally.

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This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

[github-actions]

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Test this pull request with WordPress Playground.

[github-actions]

The following accounts have interacted with this PR and/or linked issues. I will continue to update these lists as activity occurs.

Core Committers: Use this line as a base for the props when committing in SVN:

Props sainathpoojary.

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